A couple things first. Why the ban command twice? And /cs commands don\'t work on chatspace bro. And you might want to take out where it says Chevy and just put (nick) or something and tell people in your intro to change that to their nick or do as Lindrian suggested and use:
on !@*:BAN:#: {
if ($bnick == $me) || ($banmask iswm $address($me,5)) {
;commands
}
}
2/10 from me.